Shoe-pattern clamp.



J. J. ALBRECHT. SHOE PATTERN CLAMP, APPLIuATIoN FILED DBO. 24, 1907.

Patented Mar. 23, 1909.

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JACOB JQ ALBEOHT, OF SYRAGUSE, NEW YORK.

SHOE-PATTERN CLAMP.

Speccaton of Letters Patent.

Patented March 23, 1909.

Application med Beamter 24, 1907. serial no. 407,982.

To all whom it may concern.'

Be it known that l, JACOB J. ALBnEoHr, of Syracuse7 in the county ollOnondaga, in the State of New York, have invented new and usefulImprovements in Shoe Pattern Clamps, oi which the following, taken inconnection with the accompanying drawings, is a full, clear, and exactdescription.

This invention relates to certain improvements in clamps for shoepatterns and similar plates which it may be desired to teniporarilyretain together so that they may be readily swung about a common axisindepend en tly of' each other and readily separated when desired. y

"Thee shoe patterns are usually made of heavy paste board in manydillerent forms,

. each 'forni being made in diilerent sizes and the particular object oimy present invention isL to enable the user oi these forms to keep theseveral sizes oi each particular form together upon a single pivotal pinor sleeve which is passed through alined apertures in the patterns andis heldin place by a frictional locking device capable oi' being'readily removed so that such patterns may be readily separated toenable the workman to select the one desired, said patterns beingusually arranged upon the sleeve or spindle in the order oi' theirsizes. Y

ln other words the essential objects of my invention is to provide thepatterns with aperturesr arranged at a definite distance Yfrom one endandthrough which is passed a tubular sleeve having a head at one endwhile its opposite end is open to receive a split pin capable oi beinginserted in the open end oi the tube and having its opposite sidesspring tensioned apart so as to irictionally engagethe inner walls oithe tube and there by irictionally lock the pin to the sleeve and still'permit it to be readily removed under comparatively light pressure orpull.

Other objects and uses will appear in the following description.

ln the drawings-Figure i is a nal vertical sectional view oi portions oia series oi shoe patterns having registered apertures Athrough which ispassed my improved clamp7 the sleeve o'lv which is also shown in sectionwhile the split pin is shown in elevation.V Figs. 2 and 3 areperspective views respectively oi the detached sleeve and split pin.

longitudipin having its opposite arms of shoe patterns -1-.- as providedwith registered apertures -2- a fixed distance from one end oi thepatterns and through which is passed a tubular metal sleeve -S-f of alength substantially equal or slightly less than the combined thicknessof the plates -1- when resting one upon the other, one end of thetubular sleeve being providedlwith a head -4- while its other end isopen to permit the insertion and with drawal of a suitable split pin-5-. The sleeve -3- is, in this instance, open from end to end and thepin -5- is preferably oi' greater length than the length of the sleeveand is divided through its longitudinal-center forming what may betermed a furcated spring tensioned apart so as to irictionally engagethe inner walls of the tube through which it passes for rictionallylocking the'` two parts together andstill permitting said pin to bequickly and easily withdrawn under a slight pressure or pull upon thehead of the pin.

Oneend oi the pin is provided with a suitable head -'-6- by which it maybe manipulated into and out of the sleeve #3v-3 the opposite end of thespring arms oi said pin being bentA or slightly deilected laterally fromeach other at -T to afford additional irictional resistance againstaccidental withdrawal from the sleeve.

yllefdistance between the offset portions 'Z- and head -6- .oi the pin-5.- is slightly greater than the extreme length of the sleeve -3- sothat when the pin is forced through the sleeve, the offset portions -7-project beyond the adjacent end of the sleeve -3 and spring apart tovaii'ord the additional frictional resistance previously mentioned.

As a further precaution against undue separationoi the plates 1,11provide the pin 5 with a washer 8 which may be integral with or separatefrom the pin 5 and is usually arranged adjacent the head -6 so that thehead -tof the sleeve +3- engages one side of the laminated body whilethewasher -8- engages the opposite side of the same body thereby holdingthe plates against undue endwise movement and still permitting them Ytobe rotated about and upon the sleeve 3-.

It will be seen from the ioregoingdescripl tion that the opposite endsof the pin -5- In Fig. 1 l have shown portions oi a series l areenlarged, one enlargement engaging the vWhat I elailn is: A shoe patternolanip comprising a tubular sleeve flanged at one end and adapted to ex-'l tend through the patterns, a washer mounted j upon the other end oi'the sleeve, and a split pin having an enlarged head engaging with saidwasher, the arins oi said pin extending through said sleeve, the freeends ol2 tlv` arms of said pin enlarged lor engagenwnr with the lia-ngeof the sleeve whereby the pin is coupled to the sleeve and the washermaintained in position ior seeming lll.. patterns upon the sleeve.

In witness whereof I have hereunto .ser my hand this 20th day oiEDecember 1907'. JACOB J'. Aljfll lCCl lrl.

outer end faces or head `4- and the other enlargement engages the outerfaeerof the washer `8` thereby rictionally locking the sleeve and pin toeach other against accidental axial movement relatively to each other.

vThe purpose in allowing the ureated end of the pin -5* to projectbeyond the adjacent end of the sleeve -3- is first to afford additionalresistance against withdrawal of the pin and second to enable this endof the pin to be pressed against any available stationary body for thepurpose of partially withdrawing the pin from the sleeve, the remainingoperation of withdrawal being performed by the operator by Witnesses H.CHAsE, C. M. MCCORMACK.

taining the head `6` between the fingers outwardly engagement with thesleeve.

and pulling the saine upwardly or out of

